HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → HCID 22158829, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Chloromethyl ethyl ether | HCID 18523 | — |
| Reactant | 7-hydroxy-2,2-dimethyl-3,4-dihydro-2H-1-benzopyran-4-one | HCID 600902 | — |
| Catalyst | Benzyl triethylammonium chloride | HCID 66133 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 22158829 | HCID 22158829 | 85% |
Reaction Steps
A mixture of 40 ml of an 5% sodium hydroxide solution, 60 ml of dichloro methane, 0.5 g (2 millimoles) of triethyl benzyl aminium chloride and 1.9 g (10 millimoles) of 7-hydroxy-2,2-dimethyl-4-chromanone is intensively stirred at room temperature for 20 minutes, whereupon 2.3 g (2,2 ml, 25 millimoles) of chloromethyl-ethyl-ether are added and the reaction mixture is stirred for an hour. The reaction mixture is worked up according to Example 12. Thus 2.1 g of the desired compound are obtained in the form of a light yellow oil, yield 85%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04968819 |
| Source dataset | uspto-grants-1990_11 |
| ORD ID | ord-11df438b587445ee8de0f911742ff188 |
| Source note | uspto-grants-1990_11 |